Improvement in curtain-fixtures



UNITED STATES PATENT OFFICE.

JUDSON O. PERKINS, OF DUXBURY, MASSACHUSETTS, ASSIGNOR OF ONE- FOURTHHIS RIGHT TO F. E. NEARING, OF LANESVILLE, CONN.

IMPROVEMENT IN CURTAIN-FIXTURES.

Specification forming part of Letters Patent No. 152,915, dated July14,1874; application tiled March 26, 1874.

To all. lwhom it may concern: 4

Be it known that I, JUDSON O. PERKINS, of Duxbury, in the county ofPlymouth and State of Massachusetts, have invented a new Improvelnent inCurtain-Fixtures, and I 'do hereby declare the following, when taken inconnection with the accompanying drawings and the letters of referencemarked thereon, to be a full, clear, and eXact description ofthe saine,and which said drawings constitute part of this specification, andrepresent, in

Figure l, a iront view in partial section, and in Fig. 2 an end view.

This invention relates to an improvement in that class ofcurtain-fixtures in which the roll is turned to windN up the curtain bymeans of a spring coiled in the roll, the drawing down ofthe curtainserving to wind or contract the spring; and the invention consists inattaching the outer end ofthe spindle, to which one end of the spring isfixed, and upon which the roll turns, to an arm, the said arm extendingfrom that point, preferably, back, and pivoted or hung to the bracket,so as to allow that end ofthe roll to rise or be drawn down, combinedwith a toothed head or projection on the said roll, and a stationaryprojection on the bracket to engage the teeth or projection of the saidhead, to prevent the action ofthe spring upon the roll, and yet allowthe roll to be drawn down, so as to free the teeth of the head from saidprojection, and the spring to act to turn the roll, so as to wind up thecurtain.

A is the roll upon which the curtain is wound, and is made tubular, soas to receive a spring, B, one end ofthe springxed to the spindle a, theother end to the head O, or directly to the roll, in the usual manner.end of the roll opposite the head G is supported in the usual manner, soas to allow the roll to turn freely at that end. The spindle a extendsout through the head O, and is securely attached to an arm, D, the saidarm pivoted or hung to the bracket E at d, as seen in Fig.

The

2. This prevents the spindle from turning, but allows the head and rollto turn on the spindle, so that when the curtain is drawn down it willturn the roll and one end of the spring, causing the contraction of thespring, so that the reaction oi' the spring will roll up the curtain inthe usual manner. Upon the head C several projections or teeth, a, areformed, similar to the teeth of the ratchetwheel, as seen iu Fig. 2, andon the bracket a stud or projection, j', so as to lie in the path ot'the said teeth, as seen in Fig. 2, and so thnat when engaged as thereseen the roll is prevented from being turned by the reaction ot' thespring', the power of the said spring being sufcient to suspend that endof the roll by the arm D above the bracket, as seen in Fig. 2.

In drawing down the curtain, the roll will be depressed at the springend, as denoted in broken lines, Fig. 2, so that the teeth of the headwill pass the projection f until the power which draws down the curtainis relaxed; then the roll will rise and the head en gage the projectionj', and be retained in that position.

If desired to raise the curtain, draw down with suiiicient power to freethe head; then relax but slightly, and the spring will react and returnthe roll to wind up the curtain, until the curtain is released entirelyfrom the downward pull; then the roll will rise and engage, as before.

Then free the force of the spring, through the arm D, is always exertedto hold the roll up against the projection j'.

I claim as my invention- The combination, with roller A, provided withthe toothed head O and the spindle a, of the spring B, arm D, andbracket E, provided with the projection j', as and for the purposespecified.

JUDSON C. PERKINS.

Witnesses JAMES WILDE, GEAs. GUTTnIss.

